Attachment for sewing machines



Jan. 27, 1931.

R. s. KELSO ATTACHMENT FOR SEWING MACHINES Filed Nov. 21, 1929 Patented Jan. 27,1931

RALPH s; xnnsoyor nooxronn thinners-re erence serene snwine MACHINE corn .IPANIY, os'noo znoen, rLLrnors, econrone'rron on ILLInors I i j Arreci-rnnnrron sEwrNe- AoHrNEs This. invention relates to attachments for sewing machines, and more particularly to a light attachmentftor sewing machme heads to illuminate the bed of the machine.

tion is to provide a novel light supporting means for a sewmg machine head which 15 readily adjustable to desired pos1tions.

means for supporting the light attachment whereby the attachment Wlll be securely held in position and may be readily moved to adjusted positions.

A further ob ect is to provide a novel connection between the light attachment and the h head of a sewing machine'whereby thesejele- V ments'in themselves provide pivot means for the light v support, and provide means for securing the light support to the head of the machine and to permit the'turnmg movement of the support for adpistmg purposes to take place. 7 V 7 Other objects and advantages of the invention will become apparent during the course of the following description. i In the drawings I have shown .one em-. bodiment of the invention. In this showing,

1* igurel is a side elevation of a sewing machine head showin the invention applied, Figure 2 is a sectionon line 22 of Figure i 1, and, r

Figure 8 is a perspective view of the attachment. V j

Referring to the drawing, the numeral 10 zilesignates a sewing machine head including a horizontal arm 11. The wheel 12 of the machine is illustrated as being adapted to be driven by a suitable motor 13. The elements referred to constitute a generally standard sewing machine construction andform no part of the present invention.

The horizontal arm 11-01 the machine is provided at the rearside thereof with an integral boss lthaving a circular bearing v recess 15 formed therein as shown in Figures 1 and 2. The numeral 16 designates an attaching element including a hollow cylindrical outer portion 17 and an inner substantially circular plate 18 corresponding in size to and adapted to be arranged in the circu- Application filed November 21, l 929.isr m avaaossse.

lar recess 15'. The plater-l8 is provided pref= erably -'dra1netr1cally opposite points with concentricarcuate cut away portions or slots 19,forapurposeto be described.* 5 An important object of the present inven Apair ot's'c'r'eiv's 20 is threaded-in the arm 19] of the plate 18. [Each screw is provided with'a head 21 which engages against the A further object is to provide friction;

ciitenfa-ce'of the bass l l-and-frictionally engages against the outer face of the plate 18 to the heads of the screws a re adapted to engage more tightly inst the'outer 'face of the boss Ethan against-theface of the plate 18. Accordingly the screws may be driven in tightlyt'o' maintain them position, and the headsgot the screws will frictionallyengage the outerface of: the plate 18-asstated.

ittubular member 22-i si'conne'cted between the cylindrical member Y 1 7 and a light socket 23, asshown in Figuresl and QTh'emember'17 is provided with an opening 24 throughwhich a suitable electric cable 25' extends and member 22 for connectionnvithi-the proper elements of the socket-23. A pull chain 26 or anv other suitable means-is provided for the socket 23 for turning the latteron or oil as desired. 1 An elongated tubular electric light bulb 271s mounted-in the socket and is surrounded by a suitabletreflecting shield'28 con 1 nectedat its upper end tothe socket by means i this cable also extendsqthrough the;tubular member 17 The screws 20 serve the double function of securing the plate 18 in position against accidental dislodgement and also as frictional means forretaining the-light support in :adj usted positions. Accordingly when it is desiredto-movethe light upwardly itmerely is necessary to swing the light supe portagainst the frictionof the heads offthe screws, and the light support will remain-in any desired adjusted position, asforexample,

the dotted line position illustrated in Figme 1.

When it is desired to return the light to normal position, this readily may be done merely by pushing downwardly on the support, as will be apparent. It also will be apparent that thelight may be directed as desired by revolving the reflector '28 about dthe axi'softhesocket 23, and accordingly light at any desiredpoint may be secured.

' The flexible cable 25 obviously permitsadthe invention or the justment of the light support iii-the manner 7 referred to.

The device does not require the placing of any parts Within the sewing machine head,

and it will be apparent that the device readily maybe attached or detached by inserting or removing the screws 20.

It is to be understoodthat the form of the invention herewith shown and described is to be taken as the preferredieXample of the same and that various changes in the shape,

at one end of said arm, a circular plate carried by the opposite end of said arm parallel theretoand offset therefrom and adapted to be arranged in a recess in a supporting structure, said plate being provided withvarcuate concentric cut away portions,and screws for securing said plate in said recess and extending through said cut away portion, said screws being provided withheads adaptedto frictionally engage said plate to resist turning movement thereof.

In testimony whereof I aflix my signature.

0 V RALPH S. KELSO.

size and arrangement of parts may be resortwith, and screws passing through said cut 7 away portions and secured in the head of the maclnne, the heads of said' screws engaging said plate to frictionally-resist turning movement thereof. 0

2. The combination with a sewing machine head having a shallow circular recess therein, of a light support including a circular plate at one end thereof corresponding in shape and size to said recess and rotatably mounted therein, said plate being provided with arcuate cutaway portions concentric therewith, and screws passing through said cut away portions and secured in the headzofthe machine, said screws being providedwith heads adapted to tightly engage against the metal of the head of the machine surrounding said recess and to frictionally'engage said plate to resistturningmovement thereof,

' 3 A device of the character describedcomprising an arm, means for supporting a light atone end of said arm, a'circular plate carriedby'the oppositeend of said arm parallel thereto and offset therefrom and adapt ed to be arranged in a recess in a supporting structure, and! means for securing-said plate in said recess and for frictionally engaging said plate to resist turning. movement thereof in said recess. i l i l 4;. .A device-0f the character described comprising an arm, means for supporting a light 

